Melting pot particularly for stereotyping metal



Feb. 27, 1923. 1,447,111

(3. wmKLER MELTING POT PARTICULARLY FOR STEREOTYPING METAL Filed Aug.15, 1920 mam/n29 Patented Feb. 27, 1923.

CARL WINKLER, 0F BERNIE, SWITZERLAND.

MELT ING POT PARTICULARLY FOR STEREOTYPING METAL.

Application filed August 13, 1920. Serial No. 403,363.

To all whom it may concern:

Be it known that I, CARL WINKLER, a citizen of the Swiss Republic,residing at Berne, in the Swiss Republic, have invented a new and usefulImproved Melting Pot Particularly for stereotyping Metal, of which thefollowing is a specification.

In the last few years there is a tendency to construct melting furnacesfor stereotyping metal. particularly those used for east ing stereotypeplates, of such dimensions that several moulds can be simultaneouslyfed. This certainly effects an economy of space and simplifiesattendance. but in practice it will be found that disturbances, in mostcases, are due to defects in the melting pot, which, owing to thecomparatively high. and frequently fluctuating, temperature of themetal. is highly strained. If the printing establishment has only onemelting pot for all moulds. the entire concern must stop working untilthe damage is repaired.

y my invention this drawback is overcome in the case of a meltingfurnace adapted to feed several moulds by dividing the pot into severalindependently operable units having a common frame. When one of theseunits becomes defective, it is still possible to keep the concern goingwith one or more of the remaining units, without much loss of time,provided the size of the furnace is adapted to the requirements of theparticular establishment.

Preferably the furnace is so constructed that on heating one of theunits the waste gases from this unit can be used to heat at least oneother unit. This is of special importance in such cases in which oneunit of the furnace is used for small outputs several hours before themain work of the day commences, for which several (or all) units areemployed. in order to accelerate the work,

- because then the preparation for the principal work of the day isshortened and facilitated.

In the accompanying drawing a twin furnace constructed according to theinvention is shown by way of example. i

Fig. l is a vertical section of the improvement and Fig. 2 is ahorizontal section.

This furnace is designed to feed two moulds a, Z), into which the moltenmetal flows. on opening the cocks c, 03, under the head of the metal inthe melting pots e, f. Each of these melting pots constitutes a unitwith one of the furnaces g, h, which, like the melting pots, can beoperated independently of each other. Both units, however, aresurrounded by the common frame The flues is, Z of the furnaces g, Izareseparated from each other by a partition m, in which is provided a door12, adapted to be turned into the positions shown in dotted lines (Fig.2), in order to conduct the gases from one furnace through the flues ofthe other urnace in passing to the chimney o.

With this arrangement each unit can be operated independent of theother, whilst, if desired, the unit not in use, can be preliminarilyheated for later by the Waste gases.

What I claim'and desire to secure by Letters Patent of the United Statesis 1. A melting furnace for stereotype metal, comprising two meltingpots each having a valve controlled outlet, two adjoining furnaces, one.wall of each of which forms a wall of a pot, flues for the furnaces,and a valve for establishing communication be tween the said flues.

2. A melting furnace for stereotype metal, comprising two melting pots,each having a valve controlled outlet, two adjoining furnaces, one wallofeach of which forms a wall of a pot, a casing surrounding the melt ingpots and provided with a transverse partition, said casing and partitionforming fines surrounding the melting pots, and a valve in saidpartition.

CARL WIN KLER.

